We've had our Great Aussie On Road for a year and absolutely love it.
Build quality is good, and easy to setup.
I've made up some led strip lights for tent and annex which light it up well, as well as a water pump to get the water from the front jerry cans to the kitchen we setup in the annex.
After sales support from Klaus an Shane has been fantastic, they really know their stuff.
Cheers
whitedg